rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-....: (4 ticks this GP) idle=981/1/0x4000000000000002 softirq=84969/84969 fqs=5240 
	(detected by 0, t=10502 jiffies, g=120189, q=1009)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 29001 Comm: syz.4.5075 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:check_kcov_mode kernel/kcov.c:172 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:227 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0x6d/0xe0 kernel/kcov.c:329
Code: 4c 8b 05 26 22 89 7e 45 31 c9 eb 08 49 ff c1 4c 39 c8 74 77 4e 8b 54 ce 10 65 44 8b 1d 14 22 89 7e 41 81 e3 00 01 ff 00 74 13 <41> 81 fb 00 01 00 00 75 d9 41 83 b8 34 16 00 00 00 74 cf 45 8b 98
RSP: 0018:ffffc90000dcfcf8 EFLAGS: 00000006
RAX: 0000000000000020 RBX: 000000fac47633d4 RCX: 0000000000000005
RDX: ffffffff817c386e RSI: ffffffff8c360840 RDI: 0000000000000005
RBP: 0000000000000005 R08: ffff888054919dc0 R09: 000000000000000f
R10: 000000000000000f R11: 0000000000000100 R12: ffff888017a411f0
R13: 00000000000001e0 R14: dffffc0000000000 R15: 00000000000f2385
FS:  00007f8b3e8cd6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f419c88bff8 CR3: 0000000067284000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 check_buffer+0x2ae/0x890 kernel/trace/ring_buffer.c:3451
 __rb_reserve_next+0x511/0xd70 kernel/trace/ring_buffer.c:3580
 rb_reserve_next_event kernel/trace/ring_buffer.c:3715 [inline]
 ring_buffer_lock_reserve+0xadd/0xed0 kernel/trace/ring_buffer.c:3774
 __trace_buffer_lock_reserve kernel/trace/trace.c:942 [inline]
 trace_event_buffer_lock_reserve+0xd4/0x6a0 kernel/trace/trace.c:2819
 trace_event_buffer_reserve+0x2a8/0x3d0 kernel/trace/trace_events.c:627
 trace_event_raw_event_bpf_trace_printk+0x138/0x280 kernel/trace/bpf_trace.h:11
 trace_bpf_trace_printk kernel/trace/bpf_trace.h:11 [inline]
 ____bpf_trace_printk kernel/trace/bpf_trace.c:383 [inline]
 bpf_trace_printk+0x2f0/0x360 kernel/trace/bpf_trace.c:366
 bpf_prog_8b6c51d7555efb38+0x3d/0x750
 bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline]
 __bpf_prog_run include/linux/filter.h:628 [inline]
 bpf_prog_run include/linux/filter.h:635 [inline]
 BPF_PROG_RUN_ARRAY include/linux/bpf.h:1439 [inline]
 trace_call_bpf+0x2b1/0x5b0 kernel/trace/bpf_trace.c:127
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10016
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 f2 cc 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000dd05c0 EFLAGS: 00000206
RAX: fff2decd1e263100 RBX: 1ffff920001ba0bc RCX: fff2decd1e263100
RDX: dffffc0000000000 RSI: ffffffff8a2b3180 RDI: ffffffff8a7a09c0
RBP: ffffc90000dd06a0 R08: ffffffff901d80cf R09: 1ffffffff203b019
R10: dffffc0000000000 R11: fffffbfff203b01a R12: ffffffff8c323800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 is_bpf_text_address+0x24f/0x270 kernel/bpf/core.c:727
 kernel_text_address kernel/extable.c:151 [inline]
 __kernel_text_address+0x9a/0x100 kernel/extable.c:105
 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323
 arch_stack_walk+0xf2/0x140 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1710 [inline]
 slab_free_freelist_hook+0xea/0x170 mm/slub.c:1736
 slab_free mm/slub.c:3504 [inline]
 kfree+0xef/0x2a0 mm/slub.c:4564
 rcu_do_batch kernel/rcu/tree.c:2523 [inline]
 rcu_core+0x9d2/0x1670 kernel/rcu/tree.c:2763
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1135
Code: 89 f7 49 89 fc e8 e5 5c 0b 00 83 cd 02 bf 01 00 00 00 e8 f8 98 e4 ff 48 89 df 4c 89 fe 4c 89 f2 89 e9 4d 89 e0 e8 a5 f1 ff ff <bf> 01 00 00 00 e8 6b 9a e4 ff 65 8b 1d 8c 83 94 7e 31 ff 89 de e8
RSP: 0018:ffffc90002d7f3f0 EFLAGS: 00000246
RAX: fff2decd1e263100 RBX: ffffffff8d8a06e8 RCX: 1ffff920005afe64
RDX: ffffc900039a3000 RSI: 000000000003cb1d RDI: 000000000003cb1e
RBP: 0000000000000003 R08: ffffffff901d80cf R09: 1ffffffff203b019
R10: dffffc0000000000 R11: fffffbfff203b01a R12: 0000000000000000
R13: ffff8880b9135c48 R14: 0000000000000000 R15: ffffffff81364260
 __purge_vmap_area_lazy+0x21e/0x1950 mm/vmalloc.c:1690
 _vm_unmap_aliases+0x410/0x4a0 mm/vmalloc.c:2114
 change_page_attr_set_clr+0x323/0xca0 arch/x86/mm/pat/set_memory.c:1740
 change_page_attr_clear arch/x86/mm/pat/set_memory.c:1797 [inline]
 set_memory_x+0xd3/0x110 arch/x86/mm/pat/set_memory.c:1930
 bpf_jit_binary_lock_ro include/linux/filter.h:920 [inline]
 bpf_int_jit_compile+0xc6f0/0xcd80 arch/x86/net/bpf_jit_comp.c:2478
 bpf_prog_select_runtime+0x46f/0x7c0 kernel/bpf/core.c:1977
 bpf_prog_load+0x1017/0x1510 kernel/bpf/syscall.c:2358
 __sys_bpf+0x532/0x6f0 kernel/bpf/syscall.c:4657
 __do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f8b40673e59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8b3e8cd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f8b408ecfa0 RCX: 00007f8b40673e59
RDX: 0000000000000048 RSI: 0000200000000200 RDI: 0000000000000005
RBP: 00007f8b40709d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8b408ed038 R14: 00007f8b408ecfa0 R15: 00007ffe484ba978
 </TASK>